Old Norse sýra

→ Danish syre (inherited)

→ Faroese sýra (derived)

→ Icelandic sýra (inherited)

→ Latvian siers (cognate)

→ Norwegian Bokmål syre (inherited)

→ Norwegian Bokmål acetylsalisylsyre (derived)

→ Norwegian Nynorsk syre (inherited)

→ Swedish syra (derived)